Cover-placing apparatus for boxes



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MATHIAS RAKONDOLF, OF ROCHESTER, NEW- YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TOvFI-BO-PAK COMPANY, OF PHILADELPHIA'.' PENNSYLVANIA, A CORPO RArroN or DELAWARE.

COVER-PLACING APPARATUS FOR BOXES.`

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Speccaton of Letters Patent.

Patented Mar. 28, 1922.

YApplication filed April 28, 1919. Serial N0. 293,233.

To all 107mm. t may concern.'

Be it known that I, Mirra-rias It. KoNDoLr, a citizen of the United States, residing at Rochester, in the county of Monroe and State ot'v New York, have invented certain new and useful Improvements in Cover- Placing Apparatus for Boxes, of which the following is a specification.

The object of this invention is to provide new'and improved means and method for inserting the ianges of a box cover into the pockets provided in the sides and ends of the boX body.

A form of box to which this method is` especially adaptable is shown in my prior PatentNo. 1,234,480 and my pending application Serial'Number 228,485.

In'applying covers to box bodies which are provided with'pockets, such as are shown in my prior patent andV application above referred to. it has been found in practice that in making the box body the sides of the pockets are so stiff and lie so closely together'that it-takes considerable force to spreadthem apart for the insertion of the coverflanges.

To overcome -this difficulty, vI rprovide a means which, when used in the manner hereinafter describechwill hold the pockets open and guide the flanges of the cover directly into-them'.

With this and other objects in view, the method and means will be fully illustrated in the drawings, described in the specification and pointed out in the claims at the end thereof.

In the accompanying drawings:

Figure 1 is a perspective view of one of the hand tools with which the b X cover is guided in place on the boX body.

Figure 2 is a perspective view of the box partly brokenv away showing the cover in the process of being placed on the box body.

Figure 3 is a vertical section taken on the line SX--SX of Figure 2.

Figure 4 is a perspective view of a modified form of the tool shown in Figure l.

In the several figures of the drawings, like reference numerals indicate like parts.

The tool shown in Figure l comprises a pair of backing plates or guide plates I and 2 which are held suitably spaced apart at right angles to each other by means of the bracket 3. The plates l and 2 each have a horizontal channel 4; cut into them near the bottom and have a shoulder 8 formed near the top. The channels are loca-ted at the same elevation in each of the plates. Fastened to the backing plate above the channel and on the same side thereof are the knives 5 and G. These knives overlap the channels i and their edges have a shear. The edges of each of the knives 5 and 6 are positioned approximately opposite to the lower edges of each of the channels T he knives are beveled and near the lower end arev provided with the ridge or bead 7 which serves to spread `the pockets inwardly and hold them open while the flanges of the cover are inserted therein.

In practice apair of these tools areused atone end of the box to spread the pockets and hold them open to receive the flanges of the cover. One of the tools is inserted -into the pockets on one corner and the other tool is inserted into the pockets at the adjacent corner of the box. "In inserting the tool the lower portion of the backing or Aguide plates l and 2 is placed against the sides of the b x. This places `the kniif'es in line with the pockets which are to be opened up by them. By forcingithe tool downward the knives enter the pockets onv either side of the corner and spread them open.

By reason of the shear which is given to the edge of the knife, a corner or point of the knife enters the pocket first, after which the edge enters progressively, opening the pocket as it goes. In the tool shown the knife enters the pocket at the farthest point from the corner and spreads the pocket toward the corner as it descends, although it is obvious that the shear might be inclined in the other direction, in which case theknife would enter the pocket at a point near the corner and open the pocket in the reverse direction. In either case the outer wall of the pocket is sprung into the channel of the tool.

The tools are then left in place while the cover is put on the box. The cover is provided Vwith four flanges which are not connected at the corners, as is shown in Figure 2, thel ends of the flanges being beveled. The end iiange of the cover is first inserted in the pocket at the opposite end of the box from that where the tools have been applied. The cover is then swung on this flange as a center, the side flanges entering side pockets and forcing their way into them the end ofthe cover is lowered, both the side and end flanges being guided into or toward the pockets by the knives 5. hen

the end flange reaches the end pocket guided j time.

It will be understood that four tools can be used, one at each corner of the box, which will spread all the pockets and permit all the flanges of the cover to be inserted therein simultaneously. It will also be understood that this type of tool may be machine operated to open the pocket after which the machine can operate to place the cover and withdraw the tools.

I claim:

l. A tool for opening a pocket, comprising a backing plate capable of engaging one side of the pocket, a knife carried on the backing plate having an edge held in line with the opening of the pocket when the backing plate engages the side of the box, said backing plate having an open space between it and the=knife, capable of 'receiving said blade having an edge and a bead on the blade near the edge on one side thereof ca- ;pable of spreadingl the pocket to receive a engagement therewith.

flange therein while the knife remains in 3. A tool for penetrating the pockets of two adjacent sides of a box near the corner between them, said tool comprising two knives having means for holding them at right angles to eachother.

4i. A tool for penetrating the pockets of two adjacent sides of a box near the corner between them, said tool comprising two knives having means for holding them at right angles to each other with an open space between them.

5. In a tool for opening two adjacent pockets located at an angle to each other in a box, the combination of a pair of knife blades and a backing plate adapted to support said knife blades and hold them together in fixed position at an angle to each other, with their entering edges at the bottom, the entering edges of said knife blades being slanted to cause similar respective corners of both of said blades to first engage their respective pockets.

6. A tool for opening adjacent pockets in the sides of a box which comprises apair of knife blades fastened together at an angle to each other, means on said knife blades to force one side of the pocket away from the other side and means to 4guide a cover flang into the pocket thus opened.

7. A method of placing a iange cover on. a box having inner and outer walls which comprises the initial separation of'said Walls through the penetration between they same of a tool so adapted,said walls'supporting said tool for the purpose of guiding the coverflanges between the'said inner Aand outer walls. Y

In testimony whereof I affix my'signature.

MATHIASV R. KONDOLF. 

